Re: [RFC] slub memory quarantine

From: Andrey Ryabinin
Date: Tue Mar 03 2015 - 10:40:08 EST


On 03/03/2015 12:10 PM, Dmitry Vyukov wrote:
> Please hold on with this.
> Dmitry Chernenkov is working on a quarantine that works with both slub
> and slab, does not cause spurious OOMs and does not depend on
> slub-debug which has unacceptable performance (acquires global lock).

I think that it's a separate issue. KASan already depend on slub_debug - it required for redzones/user tracking.
I think that some parts slub debugging (like user tracking and this quarantine)
could be moved (for CONFIG_KASAN=y) to the fast path without any locking.


> Me or Dmitry C will send an email to kasan-dev@xxxxxxxxxxxxxxxx to
> discuss quarantine development direction.
>



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